feat(desktop): copy diagnostics from error toasts

[M4n5ter]

English

Summary

• add a Copy diagnostics action to every Desktop error toast while preserving any existing product action
• route the top-level renderer crash surface through the same unified diagnostic report
• collect bounded, redacted Desktop main-process logs, application/build metadata, renderer context, and workspace information
• add a closed Runtime Host diagnostics operation for Host lifecycle, process environment, protocol compatibility, activity, and bounded logs
• keep the copy IPC owned by the Desktop process so client diagnostics remain available while Runtime Host is disconnected or reconnecting
• bound long error input instead of rejecting the report, and redact Node-inspected Authorization and Proxy-Authorization values before they reach the clipboard

Verification

• npm run test:dist --workspace @maka/core — 808 tests passed
• npm run test --workspace @maka/runtime-host — 774 tests passed
• npm run test:dist --workspace @maka/desktop — 1,129 tests passed
• post-rebase focused diagnostics, redaction, and Runtime Host protocol regressions — 53 tests passed
• npm run typecheck
• npm run lint
• npm run format:check
• git diff --check

Checklist

• Tests cover the user-visible and protocol boundaries without timeout-based waits
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — error surfaces can copy a unified Desktop and Runtime Host diagnostic report
• No

中文

概要

• 为所有 Desktop 错误 Toast 增加“复制诊断信息”，并保留原有产品操作按钮
• 让顶层 Renderer 崩溃页面复用同一份统一诊断报告
• 收集经过边界限制和脱敏的 Desktop 主进程日志、应用与构建信息、Renderer 上下文及工作区信息
• 增加封闭的 Runtime Host 诊断操作，提供 Host 生命周期、进程环境、协议兼容性、活动状态与有界日志
• 让复制诊断 IPC 由 Desktop 进程长期持有，因此 Runtime Host 断线或重连期间仍可复制客户端诊断
• 对过长错误输入进行安全截断而不是拒绝整份报告，并在写入剪贴板前脱敏 Node inspect 形式的 Authorization 与 Proxy-Authorization

验证

• npm run test:dist --workspace @maka/core — 808 项测试通过
• npm run test --workspace @maka/runtime-host — 774 项测试通过
• npm run test:dist --workspace @maka/desktop — 1,129 项测试通过
• rebase 后诊断、脱敏与 Runtime Host 协议聚焦回归 — 53 项测试通过
• npm run typecheck
• npm run lint
• npm run format:check
• git diff --check

检查清单

• 测试覆盖用户可见行为与协议边界，且不依赖 timeout wait
• lint、format、typecheck 与受影响测试套件均在本地通过

此 PR 是否包含行为变化？

• 是 — 错误界面现在可以复制统一的 Desktop 与 Runtime Host 诊断报告
• 否